Comparison between:
- Samsung Galaxy S20 Exynos
- Apple iPhone SE (2020)
- Xiaomi Mi A2
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Samsung Galaxy S20 Exynos | Apple iPhone SE (2020) | Xiaomi Mi A2 | |
 Prices |  Prices |  Prices | |
| Model alias | SM-G980 SM-G980F SM-G980F/DS | - | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 69.1 mm 6.91 cm 0.227 ft 2.72 in | 67.3 mm 6.73 cm 0.221 ft 2.65 in | 75.4 mm 7.54 cm 0.247 ft 2.969 in |
| Height | 151.7 mm 15.17 cm 0.498 ft 5.972 in | 138.4 mm 13.84 cm 0.454 ft 5.449 in | 158.7 mm 15.87 cm 0.521 ft 6.248 in |
| Thickness | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 7.3 mm 0.73 cm 0.024 ft 0.287 in | 7.3 mm 0.73 cm 0.024 ft 0.287 in |
| Weight | 163 g 0.36 lbs 5.75 oz | 148 g 0.33 lbs 5.22 oz | 168 g 0.37 lbs 5.93 oz |
| Volume | 82.81 cm³ 5.03 in³ | 67.99 cm³ 4.13 in³ | 87.35 cm³ 5.3 in³ |
| Colors | Cosmic Grey Cloud Blue Cloud Pink | White Black Gray | Black Blue Gold |
| Body materials | Glass Aluminium alloy | Aluminium alloy Glass | Aluminium alloy |
| Certification | IP68 | IP67 | - |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Nano-SIM | Nano-SIM | Nano-SIM |
| Number of SIM cards | 1 | 1 | 2 |
| Features | Dual SIM optional (A variant of the model with two SIM card slots is available) | - | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) |
| eSIM | - | - |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| CDMA | - | CDMA 800 MHz (BC0) CDMA 1700/2100 MHz (BC15) CDMA 1900 MHz (BC1) | - |
| CDMA2000 | - | 1xEV-DO Rev. A | - |
| TD-SCDMA | - | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz | - |
| UMTS | UMTS 850 MHz (B5) UMTS 900 MHz (B8) UMTS 1700 MHz (B4) UMTS 1900 MHz (B2) UMTS 2100 MHz (B1) | - | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE | LTE-FDD 700 MHz (B12) LTE-FDD 700 MHz (B13) LTE-FDD 700 MHz (B17) LTE-FDD 700 MHz (B28) LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1700 MHz (B4) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE-FDD 700 MHz (B12) LTE-FDD 700 MHz (B13) LTE-FDD 700 MHz (B14) LTE-FDD 700 MHz (B17) LTE-FDD 700 MHz (B29) LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 850 MHz (B18) LTE-FDD 850 MHz (B19) LTE-FDD 850 MHz (B26) LTE-FDD 900 MHz (B8) LTE-FDD 1700 MHz (B4) LTE-FDD 1700 MHz (B66) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE-TDD 3500 MHz (B42) LTE-TDD 3600 MHz (B48) | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ LTE Cat 20 | UMTS EDGE GPRS HSPA+ LTE Cat 16 LTE-A EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 12 |
| Enhanced 4x4 MIMO Up to 7CA LAA (US only) | 2x2 MIMO LAA4 | - |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 10 | iOS 13 | Android 8.1 Oreo Android 9.0 Pie |
| User interface (UI) | One UI 2.0 | - | - |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | Samsung Exynos 990 | Apple A13 Bionic APL1W85 | Qualcomm Snapdragon 660 MSM8976 Plus |
| Process technology | 7 nm | 7 nm | 14 nm |
| CPU | 2x 2.7 GHz Exynos M5 Mongoose, 2x 2.5 GHz ARM Cortex-A76, 4x 2.0 GHz ARM Cortex-A55 | - | 4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8 |
| CPU cores | 8 | 6 | 8 |
| CPU frequency | 2700 MHz | 2650 MHz | 2200 MHz |
| GPU | ARM Mali-G77 MP11 | - | Qualcomm Adreno 512 |
| GPU cores | 11 | 4 | - |
| GPU frequency | - | - | 650 MHz |
| RAM capacity | 8 GB | 3 GB | 4 GB 6 GB |
| RAM type | LPDDR5 | LPDDR4 | LPDDR4X |
| RAM channels | Double channel | - | Double channel |
| RAM frequency | 2750 MHz | - | 1866 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 128 GB | 64 GB 128 GB 256 GB | 32 GB 64 GB 128 GB |
| UFS 3.0 | - | eMMC 5.1 |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | - | - |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | Dynamic AMOLED 2X | IPS | IPS |
| Diagonal size | 6.2 in 157.48 mm 15.75 cm | 4.7 in 119.38 mm 11.94 cm | 5.99 in 152.15 mm 15.21 cm |
| Width | 2.54 in 64.62 mm 6.46 cm | 2.3 in 58.51 mm 5.85 cm | 2.68 in 68.04 mm 6.8 cm |
| Height | 5.65 in 143.61 mm 14.36 cm | 4.1 in 104.06 mm 10.41 cm | 5.36 in 136.08 mm 13.61 cm |
| Aspect ratio | 2.222:1 | 1.779:1 | 2:1 2:1 (18:9) |
| Resolution | 1440 x 3200 pixels | 750 x 1334 pixels | 1080 x 2160 pixels |
| Pixel density | 566 ppi 222 ppcm | 326 ppi 128 ppcm | 403 ppi 158 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 88.82 % | 65.57 % | 77.63 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 6 Infinity-O Display Always-On Display 120Hz refresh rate HDR10+ | Ion-strengthtened glass Retina HD display Haptic Touch 1400:1 contrast ratio 625 cd/m² Oleophobic (lipophobic) coating LED-backlit Wide Color display (P3) | Corning Gorilla Glass 5 2.5D curved glass screen LTPS (Low Temperature PolySilicon) 1500:1 contrast ratio 500 cd/m² 85% NTSC |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Barometer Geomagnetic Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Barometer Fingerprint | Proximity Light Accelerometer Compass Gyroscope Barometer Fingerprint Hall |
| In-display ultrasonic fingerprint sensor | - | Fingerprint sensor model - Fingerprint Cards FPC1028 |
Rear camera
The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | Sony IMX555 | Sony Exmor RS | Sony IMX486 Exmor RS |
| Sensor type | CMOS | CMOS | CMOS |
| Sensor size | 6.45 x 8.46 mm 0.42 in | - | - |
| Sensor format | 1/1.76" | 1/3" | 1/2.9" |
| Pixel size | 1.8 µm 0.001800 mm | 1.22 µm 0.001220 mm | 1.25 µm 0.001250 mm |
| Crop factor | 4.07 | - | - |
| Aperture | f/1.8 | f/1.8 | f/1.75 |
| Focal length and 35 mm equivalent | 4.32 mm 17.57 mm *(35 mm / full frame) | 3.99 mm 28 mm *(35 mm / full frame) | 4.07 mm |
| Field of view | 79 ° | - | - |
| Number of lenses | - | 6 | - |
| Flash type | Dual LED | - | Dual LED |
| Image resolution | 4032 x 3024 pixels 12.19 MP | 4032 x 3024 pixels 12.19 MP | 4000 x 3000 pixels 12 MP |
| Video resolution | 7680 x 4320 pixels 33.18 MP | 3840 x 2160 pixels 8.29 MP | 3840 x 2160 pixels 8.29 MP |
| Video FPS | 24 fps | 60 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Optical zoom Optical image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) | Autofocus Continuous shooting Digital zoom Optical image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode RAW | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) |
| Phase detection with Dual Pixel Object tracking AF Dual OIS 2160p @ 60 fps 1080p @ 240 fps 720p @ 960 fps HDR10+ video recording Secondary rear camera - 12 MP (ultra-wide angle) Aperture size - f/2.2 (#2) Angle of view - 120° (#2) Focal length (35 mm equivalent) - 22 mm (#2) Third rear camera - 64 MP (telephoto) Aperture size - f/2.0 (#3) Angle of view - 76° (#3) PDAF (#3) 3x optical zoom (#3) | Flash type - Quad LED Hybrid IR filter Noise reduction Sapphire crystal glass lens cover 1080p @ 240 fps | 720p @ 120 fps Secondary rear camera - 20 MP Sensor model - Sony IMX376 Exmor RS (#2) Sensor type - CMOS BSI (#2) Sensor size - 1/2.78" (#2) Pixel size - 2.0 μm (4-in-1 pixel binning) (#2) Aperture size - f/1.75 (#2) |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Sensor model | Sony IMX374 | - | Sony IMX376 Exmor RS |
| Sensor type | CMOS | CMOS BSI | CMOS BSI |
| Sensor format | - | - | 1/2.78" |
| Pixel size | - | 1 µm 0.001000 mm | 1 µm 0.001000 mm |
| Aperture | f/2.2 | f/2.2 | f/2.2 |
| Focal length and 35 mm equivalent | 26 mm *(35 mm / full frame) | 2.87 mm 32 mm *(35 mm / full frame) | 3.82 mm |
| Field of view | 80 ° | - | - |
| Auxiliary light | - | - | LED |
| Image resolution | 10 MP | 3088 x 2320 pixels 7.16 MP | 5184 x 3880 pixels 20.11 MP |
| Video resolution | 3840 x 2160 pixels 8.29 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 60 fps | 30 fps | 30 fps |
| Features | Phase detection autofocus (PDAF) HDR Autofocus | HDR Digital image stabilization | - |
| Phase detection with Dual Pixel Auto HDR | 720p @ 240 fps | Pixel size - 2.0 μm (4-in-1 pixel binning) HDR |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece |
| 384 kHz / 32-bit AKG audio Dolby Atmos | Dolby Digital Plus HAC (M3/T4) - Hearing Aid Comaptibility | Headphone adapter |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | No | No |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou Galileo | GPS A-GPS GLONASS Wi-Fi Cell ID | GPS A-GPS GLONASS BeiDou |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display 802.11ax | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot 802.11ax | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
| HE80 MiMO 1024-QAM | 2x2 MIMO | 2x2 MiMO |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.0 | 5.0 | 5.0 |
| Features | A2DP AVRCP DIP HFP HID HSP LE MAP OPP PAN PBAP | A2DP LE | A2DP HID |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | USB Type-C | - | USB Type-C |
| Version | 3.2 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage Proprietary | Charging Host Mass storage On-The-Go |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | No | No | No |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering NFC ANT+ | Computer sync OTA sync Tethering NFC VoLTE | Computer sync OTA sync Infrared Tethering VoLTE |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR FLAC M4A MIDI MP3 OGG WMA WAV 3GA OGA AWB MID XMF MXMF IMY RTTTL RTX OTA APE DSF DFF | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV AIFF | AAC AAC+ AC3 AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | AVI MKV MP4 WMV M4V 3GP 3G2 ASF FLV WEBM | 3GPP AVI H.263 H.264 QuickTime MPEG-4 | 3GPP AVI H.263 H.264 H.265 MKV MP4 VC-1 VP8 Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 4000 mAh | 1821 mAh | 3010 mAh |
| Type | Li-Polymer | Li-Ion | Li-Polymer |
| 2G talk time | - | 12 h 720 min 0.5 days | - |
| 3G talk time | - | 12 h 720 min 0.5 days | - |
| Charger output power | 5 V / 5 A | 5 V / 1 A | 5 V / 2 A |
| Quick charge technology | - | USB Power Delivery 2.0 | Qualcomm Quick Charge 3.0 |
| Features | Wireless charging Fast charging Non-removable | Wireless charging Fast charging Non-removable | Fast charging Non-removable |
| Qi/PMA wireless charging - 15 W Wireless reverse charging - 9 W Fast Wireless Charging 2.0 USB Power Delivery 3.0 | Qi wireless charging | - |
Specific Absorption Rate (SAR)
The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.
| Head SAR (EU) | 0.279 W/kg | - | 0.963 W/kg |
| Body SAR (EU) | 1.525 W/kg | - | 0.639 W/kg |
| Head SAR (USA) | 0.76 W/kg | - | 1.16 W/kg |
| Body SAR (USA) | 1.01 W/kg | - | 0.66 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | Samsung DeX | - | M1804D2SI - SAR (Specific Absorption Rate) India: head - 1.092 W/kg; body - 0.259 W/kg |
| Samsung Galaxy S20 Exynos | Apple iPhone SE (2020) | Xiaomi Mi A2 |